Torsional vibration damper

a torsional vibration and damper technology, applied in the direction of fluid couplings, couplings, machines/engines, etc., can solve the problems of insufficient damping properties, complex construction of flywheels, and large circumference, and achieve excellent damping properties and simple structural design.

US8632413B2Inactive Publication Date: 2014-01-21ASTURIA AUTOMOTIVE SYST
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
Publication Date
2014-01-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

A torsional vibration damper (1) having a damping element disposed between a first element (4) and a second element (5), in which the first element and the second element can rotate relative to each other, with or without a coupling part (3) that is located in a housing (2) and is axially displaceable along an axis (A) between the first and second elements, in which, if a coupling part is present, a) the coupling part is displaceable along the axis (A) against the spring force of at least one spring element (6, 7) and / or b) the coupling part is displaceable along the axis (A) against a medium which acts on both sides of the coupling part, with the medium located in internal or external partial spaces. Alternatively, in a damping element not having a coupling part, c) resilient elements are integrated in third coupling elements, and the coupling elements are connected to the first and second elements.
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Description

BACKGROUND OF THE INVENTION

[0001] The invention relates a torsional vibration damper, which is inserted between a driving system and a driven system and serves to damp the input and output vibrations and balances the torque variations.

[0002] There exist a plethora of torsional vibration dampers, wherein a driving element and a driven element are connected by a torsional spring (for example, DE 10 2005 037 996 B3) for torque transmission.

[0003] Furthermore, there exist systems, wherein a torsional vibration is damped by means of spring elements, which can be loaded in a radial or circumferential direction (DE 198 12 303 A1, DE 197 33 334 A1).

[0004] DE 32 28 673 A1 describes a torsional vibration damper with a laterally displaceable damping element. The torsional vibration damper, which is suited in particular for the clutch disk of a motor vehicle, has two damper parts, which can be rotated relative to one another about a common axis of rotation and which are coupled to one another by wa...

Examples

Embodiment Construction

[0031]FIGS. 1 and 2 show a torsional vibration damper comprising a damping element 1, which exhibits an axially displaceable coupling part 3 that is arranged in a housing 2. The housing 2 is mounted rigidly on the frame, and the coupling part 3 is arranged between a first element 4 in the form of a first rotary shaft and a second element 5 in the form of a second rotary shaft. In this case the first element 4 and the second element 5 can be rotated relative to each other. The first element 4 is connected to the coupling part 3 by way of the first rigid coupling elements 4.1, which are mounted in a rotatable manner, and the second element 5 is connected to the coupling part 3 by way of the second rigid coupling elements 5.1, which are mounted in a rotatable manner. The first coupling elements 4.1 are constructed in the form of ball bars and are rotatably mounted, on the one hand, with their ball-shaped ends in a first receptacle 4.2 of the first element 4 and, on the other hand, in a...